customer base

customer base (countable and uncountable, plural customer bases)

1. A group of customers and/or consumers that a business serves.

   Synonyms: client base, consumer base

• clientele
• product base

• “customer base”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “customer base”, in Collins English Dictionary.
• “customer base” (US) / “customer base” (UK) in Macmillan English Dictionary.